Incorrect definition of table mysql.column_stats: expected column 1


2022-06-07  7:17:02 3051 [ERROR] Incorrect definition of table mysql.column_stats: expected column 'hist_type' at position 9 to have type enum('SINGLE_PREC_HB','DOUBLE_PREC_HB','JSON_HB'), found type enum('SINGLE_PREC_HB','DOUBLE_PREC_HB').
2022-06-07  7:17:02 3051 [ERROR] Incorrect definition of table mysql.column_stats: expected column 'histogram' at position 10 to have type longblob, found type varbinary(255).

While checking the logs of a MariaDB docker container, we found the above error lines repeating thousands of times. It appears that there was an issue during the migration of the database to a newer version. The solution was to manually execute the command mysql_upgrade. To execute it, we first had to gain access to a shell inside the container, we did that using docker exec -it CONTAINER_NAME /bin/bash as below:

# Gain shell access to the database container
docker exec -it mariadb_alpha /bin/bash;
# In the shell of the container, we executed the following to automatically fix a variety of problems/errors
mysql_upgrade --user=root --password;

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